Security advisory

{
  "id": "0cc305a85336e10f918096367aa88554ff657fb10b10dd9b821c14e47b306642",
  "url": "https://osv.dev/vulnerability/CVE-2021-22240",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-22240",
    "summary": "Improper access control in GitLab EE versions 13.11.6, 13.12.6, and 14.0.2 allows users to be created via single sign on despite user cap being enabled",
    "evidence": "osv:CVE-2021-22240",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-22240",
      "aliases": [
        "BIT-gitlab-2021-22240",
        "CVE-2021-22240"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/gitlab-org/gitlab",
              "type": "GIT",
              "events": [
                {
                  "introduced": "036576a25d67513637c1e2cba5859af47695188e"
                },
                {
                  "fixed": "c97463266eba228cdd87a62b1289bf372c1b3866"
                },
                {
                  "introduced": "12a3ec8fb4a540576b2d47247bc86ea7e2c7565b"
                },
                {
                  "fixed": "088a665feba19e15cff694d69fc920197286678b"
                },
                {
                  "introduced": "0034acfc891b0cbc2ecc4aa4c5ca0d1f89e3c32f"
                },
                {
                  "fixed": "2504e045362c0930170ea2f9bfd0d1e4d143a817"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "13.7.0"
                      },
                      {
                        "fixed": "13.11.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "13.12.0"
                      },
                      {
                        "fixed": "13.12.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*",
                    "range": [
                      {
                        "introduced": "14.0.0"
                      },
                      {
                        "fixed": "14.0.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v13.12.5-ee",
            "v14.0.1-ee",
            "v14.0.0-ee",
            "v13.12.4-ee",
            "v13.12.3-ee",
            "v13.12.1-ee",
            "v13.12.0-ee"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-22240.json"
          }
        }
      ],
      "modified": "2026-10-30T10:30:57.447615502Z",
      "provider": "osv",
      "references": [
        "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22240.json",
        "https://gitlab.com/gitlab-org/gitlab/-/issues/327641",
        "https://hackerone.com/reports/1166566"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-22240",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431557,
  "published_at": "2021-08-05T20:15:07.783+00:00"
}